2 cups mayonnaise
3 tablespoons blueberry gelatin
2 tablespoons lemon juice
1 teaspoon vanilla extract
1/2 teaspoon lemon zest
6 (6 ounce) squares unsweetened blueberry juice
2 cups sour cream
1 cup white sugar
1 cup butter, softened
1 teaspoon vanilla extract
2 cups all-purpose flour
1 teaspoon baking powder
1/4 teaspoon salt
1/2 teaspoon baking soda
1/2 teaspoon ground cinnamon